Exodus 19:6
4 ‘You yourselves have seen what I did to Egypt and how I lifted you on eagles’ wings and brought you to myself. 5 And now, if you will diligently listen to me and keep my covenant, then you will be my special possession out of all the nations, for all the earth is mine, 6 and you will be to me a kingdom of priests and a holy nation.’ These are the words that you will speak to the Israelites.” 7 So Moses came and summoned the elders of Israel. He set before them all these words that the Lord had commanded him, 8 and all the people answered together, “All that the Lord has commanded we will do!” So Moses brought the words of the people back to the Lord.
1 Peter 2:9
7 So you who believe see his value, but for those who do not believe, the stone that the builders rejected has become the cornerstone, 8 and a stumbling-stone and a rock to trip over. They stumble because they disobey the word, as they were destined to do. 9 But you are a chosen race, a royal priesthood, a holy nation, a people of his own, so that you may proclaim the virtues of the one who called you out of darkness into his marvelous light. 10 You once were not a people, but now you are God’s people. You were shown no mercy, but now you have received mercy. 11 Dear friends, I urge you as foreigners and exiles to keep away from fleshly desires that do battle against the soul,
Notes and References
"... Our earlier discussion of the renewed human vocation, as in Revelation 1, 5, and 20 and other parts of the New Testament, comes suddenly into new focus as a matter of history, not simply of literary imagination: here, through the suffering of the martyrs, the defeat of the pagans, and the cleansing the Temple is a kingdom of priests! The claim of the seventh brother in 2 Maccabees 7 emphasizes the first point. The victory and the cleansing came because the suffering of the martyrs somehow brought to an end the sufferings of the people as a whole, which had been caused by their sins. Now the victory over the pagans could begin. I do not suppose that the author of Revelation was consciously alluding to the Hasmonean priest-kings. Nor do I imagine that 1 Peter 2:9, which also invokes Exodus 19:6, had in mind the claims of that dynasty, which by the middle of the first century AD had passed into ignominious history, having failed to prevent the Roman invasion, the rise of Herod, and many other ills. But the parallel does indicate the ways in which the larger implicit story of Israel, anchored in the ancient scriptures, could be brought back to life not just in theory but also in concrete practice. The hundred-year reign of the Maccabean priest-kings may be seen as a distant cousin of the thousand-year reign of the Messiah’s people, the “reigning priesthood,” in Revelation 20:6 ..."
Wright, N. T. The Day the Revolution Began: Reconsidering the Meaning of Jesus’s Crucifixion (p. 152) HarperOne, 2016